Uglyfugly table view code

gistfile1.m

// TODO use bindings for this, once I figure out the data model...

- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView
{
    return [[[self document] attributes] count];
}

- (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row
{
    assert(tableView == attributeTable);
    OBAttribute *attribute = [[[self document] attributes] objectAtIndex:row];
    
    if ([[tableColumn identifier] isEqualToString:@"attribute"])
    {
        return [attribute description];
    }
    else if ([[tableColumn identifier] isEqualToString:@"binding"])
    {
        NSString *identifier = [[[self document] attributeBindings] objectForKey:[attribute name]];
        return [NSNumber numberWithUnsignedInt:[[tableColumn dataCell] indexOfItemWithTitle:identifier]];
    }
    else
    {
        abort();
    }
}

- (void)tableView:(NSTableView *)tableView setObjectValue:(id)object forTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row
{
    assert(tableView == attributeTable);
    NSString *attributeName = [[[[self document] attributes] objectAtIndex:row] name];
    assert([[tableColumn identifier] isEqualToString:@"binding"]);
    assert([object isKindOfClass:[NSNumber class]]);
    NSString *title = [[tableColumn dataCell] itemTitleAtIndex:[object unsignedIntValue]];
    [[[self document] attributeBindings] setObject:title forKey:attributeName];
}